Air compressor having easily assembled structure

Abstract

An air compressor includes a pressure gage attached to a cylinder housing, a compression device having a piston container slidably received in the cylinder housing for supporting a compression valve and a positioning block and a valve piece and a limiting piece. A motor is secured to a seat. A gear is rotatably secured to the seat and driven by the motor and includes a weight pivotally coupled to the piston container with a link. The elements may be secured onto the cylinder housing and the seat separately before the seat is secured to the cylinder housing.

I claim:  
     
       1. An air compressor comprising: 
       a) a cylinder housing including an outlet port, said cylinder housing including at least one projection extended therefrom,  
       b) a pressure gage attached to said cylinder housing,  
       c) a compression device including:  
       i) a piston container slidably received in said cylinder housing and including a post extended upward therefrom and including a disc provided on top of said post, said disc including a pin extended upward therefrom,  
       ii) a compression valve and a positioning block engaged onto said post and retained on said post with said disc, said post and said disc including at least one air inlet formed therein and communicating with an interior of said piston container,  
       iii) a valve piece engaged on said pin of said disc,  
       iv) a limiting piece including a fastening portion engaged with said pin for securing said valve piece on said pin of said disc, and  
       v) a link including an upper portion pivotally secured to said piston container and including a bottom portion,  
       d) a seat including an orifice formed therein, said seat including at least one sleeve provided therein, said at least one projection of said cylinder housing being engaged into said at least one sleeve of said seat,  
       e) a motor secured to said seat and including a pinion engaged through said orifice of said seat,  
       f) a transmission device including:  
       i) a gear rotatably securing to said seat at a pivot shaft and engaged with said pinion and driven by said motor via said pinion, said gear including a non-circular casing provided thereon, said gear including a first half having a thick toothed portion provided thereon for engaging with said pinion of said motor and including a second half having a thin toothed portion provided thereon for engaging with said pinion of said motor, said thin toothed portion of said gear including a thickness smaller than that of said thick toothed portion of said gear,  
       ii) a weight including a non-circular shape engaged in said non-circular casing and rotated in concert with said gear, said weight being engaged on said shaft and rotated in concert with said shaft, said weight including an axle extended therefrom and rotatably engaged through said lower portion of said link for moving said link up and down when said weight is rotated by said shaft, and  
       g) means for securing said seat to said cylinder housing.